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1SDA056042R1 ABB E2S2000 PR121/P-LSIG 2000A 4P Withdrawable Air Circuit Breaker
ABB 1SDA056042R1 is a SACE Emax E2S 2000 four-pole 2000 A withdrawable air circuit breaker with a PR121/P-LSIG electronic overcurrent release for comprehensive low-voltage circuit protection.
£17,104.69
Why Choose the ABB E2S2000 PR121/P-LSIG 2000A 4P Withdrawable Air Circuit Breaker?
The ABB E2S2000 PR121/P-LSIG, order code 1SDA056042R1, is a high-performance SACE Emax air circuit breaker designed for protection and switching in demanding low-voltage power distribution systems. As part of the ABB SACE Emax E2S series, this four-pole withdrawable circuit breaker is rated at 2000 A and incorporates a PR121/P-LSIG electronic overcurrent release.
The PR121/P-LSIG trip unit provides comprehensive long-time overload (L), short-time short-circuit (S), instantaneous short-circuit (I) and earth-fault (G) protection. This combination enables coordinated protection against overloads, short circuits and earth faults, helping safeguard switchgear, cables, busbars and connected equipment in critical electrical distribution systems.
This E2S2000 configuration features a four-pole withdrawable execution, allowing the circuit breaker to be disconnected and withdrawn from its compatible fixed part for inspection, servicing and replacement. Its 2000 A rating and advanced electronic protection make it well suited to high-current industrial, commercial and infrastructure switchboards.
Key Advantages
- High-capacity 2000 A SACE Emax air circuit breaker.
- Advanced PR121/P electronic overcurrent release for dependable circuit protection.
- Comprehensive LSIG protection against overload, short-time short-circuit, instantaneous short-circuit and earth-fault conditions.
- Four-pole configuration suitable for three-phase systems incorporating a neutral conductor.
- Withdrawable execution supports efficient inspection, maintenance and replacement in compatible switchboards.
- Part of ABB's established SACE Emax E2S low-voltage air circuit breaker platform.
Key Features
- ABB SACE Emax E2S 2000 air circuit breaker.
- 2000 A rated current.
- Four-pole configuration.
- PR121/P-LSIG electronic overcurrent release.
- Long-time overload protection (L).
- Short-time short-circuit protection (S).
- Instantaneous short-circuit protection (I).
- Earth-fault protection (G).
- Withdrawable circuit breaker execution.
- Designed for high-current low-voltage power distribution and switchboard applications.
Advanced Protection for High-Current Power Distribution
Air circuit breakers such as the ABB SACE Emax E2S2000 provide switching and protection for high-current low-voltage distribution circuits. The electronic overcurrent release monitors electrical conditions and initiates breaker operation when configured protection thresholds are exceeded, helping protect cables, busbars, switchgear and connected electrical equipment.
The PR121/P-LSIG release combines overload, short-time, instantaneous and earth-fault protection within a single electronic trip unit. Together with the four-pole withdrawable construction, this makes the E2S2000 suitable for maintainable switchboard installations where comprehensive protection and dependable high-current switching are required.
Typical Applications
- Low-voltage main distribution switchboards.
- Industrial power distribution systems.
- Manufacturing and process plant switchgear.
- Commercial building electrical distribution.
- Infrastructure and utility installations.
- Main incomer and high-current feeder protection.
- Four-pole distribution systems requiring advanced earth-fault protection.
- Switchboards requiring withdrawable circuit breaker assemblies.
Technical Specifications
| Product family | SACE Emax |
|---|---|
| Series / frame | E2S 2000 |
| ABB order code | 1SDA056042R1 |
| Product type | Air circuit breaker |
| Rated current (In) | 2000 A |
| Number of poles | 4 |
| Trip unit | PR121/P |
| Release type | Electronic |
| Protection functions | LSIG |
| Long-time protection | L |
| Short-time protection | S |
| Instantaneous protection | I |
| Earth-fault protection | G |
| Execution | Withdrawable |
| Application | Low-voltage power distribution |
| Product group | 310513-New Emax |
Frequently Asked Questions
What is the ABB 1SDA056042R1?
The ABB 1SDA056042R1 is a SACE Emax E2S 2000 four-pole withdrawable air circuit breaker rated at 2000 A and equipped with a PR121/P-LSIG electronic overcurrent release.
What is the rated current of the ABB E2S2000 PR121/P-LSIG?
The circuit breaker has a rated current of 2000 A and is designed for high-current low-voltage power distribution applications.
What does LSIG protection mean?
LSIG denotes long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection, providing comprehensive electronic protection for low-voltage distribution circuits.
How many poles does ABB 1SDA056042R1 have?
The ABB 1SDA056042R1 is a four-pole circuit breaker, suitable for three-phase distribution systems where the neutral conductor is incorporated into the breaker configuration.
Is the ABB 1SDA056042R1 fixed or withdrawable?
This model is a withdrawable E2S2000 circuit breaker, designed for use with a compatible fixed part in a low-voltage switchboard.
Does the ABB 1SDA056042R1 provide earth-fault protection?
Yes. Its PR121/P-LSIG electronic trip unit includes the G earth-fault protection function in addition to long-time, short-time and instantaneous overcurrent protection.
Trusted by Electrical Engineers Worldwide
ABB SACE Emax air circuit breakers are widely applied in demanding low-voltage power distribution systems, providing dependable high-current switching and advanced electronic protection for industrial, commercial and infrastructure installations.
